# clm_F43E6397059E

subject: Abbott Laboratories (/record/abbott-laboratories.md)  
predicate: headquarters  
value: North Chicago  
valid_from: undated  
valid_to: null  
published: no source on record carries a date  
recorded: 2026-11-08  
confidence: 0.45  
status: unverified  
assertable: false (low_confidence: Confidence below 0.5, the line the record asserts at.)  
superseded_by: null  
last_updated: 2026-11-09  
cite: AsOf. "Abbott Laboratories headquarters: North Chicago", undated. Claim clm_F43E6397059E, https://asof.is/claim/clm_F43E6397059E, accessed 2026-11-09. Source: https://www.med-dept.com/resources/ww2-medical-equipment-manufacturers-and-suppliers/.  
checked: 2026-11-09 · its source page states the value and the date  

> Abbott Laboratories, Inc. – North Chicago, Illinois

What https://www.med-dept.com/resources/ww2-medical-equipment-manufacturers-and-suppliers/ says, word for word.

## Sources

- https://www.med-dept.com/resources/ww2-medical-equipment-manufacturers-and-suppliers/ (secondary)
- https://www.wikidata.org/wiki/Q306764 (secondary, Wikidata)

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AsOf is a temporal fact ledger: a structured, dated, sourced record of what is true and what changed, built for AI retrieval.
